In Scho K.O., players place tiles with white and black chocolate squares on two layers, trying to create the largest connected region of their own color. Smarties on the tiles both permit and block the placement of overlapping squares on the second layer, adding an extra level of play. Scho K.O. is similar to Schokoly, but is for only two players and consequently has only two colors of chocolate and red specials printed on the tiles.